// components/class-son-nav/nav.js
Component({
  /**
   * 组件的属性列表
   */
  properties: {
    title: String,
    first: Number,
    last: Number
  },

  /**
   * 组件的初始数据
   */
  data: {
    disLeftSrc: '../../images/triangle.dis@left.png',
    leftSrc: '../../images/triangle@left.png',
    disRightSrc: '../../images/triangle.dis@right.png',
    rightSrc: '../../images/triangle@right.png',

  },

  /**
   * 组件的方法列表
   */
  methods: {
    onLeft: function () {
      if (this.properties.first) {
        this.triggerEvent('left', {}, {})
      }
    },

    onRight: function () {
      if (this.properties.last) {
        this.triggerEvent('right', {}, {})
      }
      
    }



  }
})